Have you ever dreamed about a pastry filled with potato? Well then, this Russian dish is everything you've ever wanted. First appearing in the mid-17th Century, they were originally sold at markets from pushcarts and baskets.

Say hello to the bagel's cousin, bialy. This Polish pastry is deliciously pizza-like. The bialy is rumoured to have come about because a baker didn't want to waste dough that had dropped on the floor, so he added some poppy seed and onion.